Code execution via lockfile-controlled Git fetch option
Published Jun 25, 2026 · Updated Jun 25, 2026
Argument injection in pnpm before 10.34.0 and 11.0.0 through versions before 11.4.0 allows attackers to execute code via a malicious lockfile. The git fetcher appends the lockfile-controlled resolution.commit string to git fetch without a separator or hexadecimal commit validation, allowing Git to parse --upload-pack as an option. Exploitation requires a modified pnpm-lock.yaml, user execution of pnpm install, the shallow-fetch path, and an SSH or local Git transport; HTTPS ignores the injected option.
Summary
What happened
Argument injection in pnpm before 10.34.0 and 11.0.0 through versions before 11.4.0 allows attackers to execute code via a malicious lockfile. The git fetcher appends the lockfile-controlled resolution.commit string to git fetch without a separator or hexadecimal commit validation, allowing Git to parse --upload-pack as an option. Exploitation requires a modified pnpm-lock.yaml, user execution of pnpm install, the shallow-fetch path, and an SSH or local Git transport; HTTPS ignores the injected option.
The record
- CVE
- CVE-2026-50014
- Published
- Jun 25, 2026
- Updated
- Jun 25, 2026
- Vendor
- pnpm
- Product
- pnpm
- Classifications
- CWE-88, T1204.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 25, 2026CVE publishedPublication date reported by the CVE source.
- Jun 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 10.33.4
- Affected versionversion=>= 11.0.0, < 11.4.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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